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How to delete an object by id with entity framework
...ction is Remove. Here is an example
Customer customer = new Customer () { Id = id };
context.Customers.Attach(customer);
context.Customers.Remove(customer);
context.SaveChanges();
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Merge a Branch into Trunk
... a reintegration, and there doesnt seem to be a way to prevent it. This means as soon as you merge, you cannot then use the branch without going through the dreaded "keep-alive dance"
– John Little
Nov 12 '15 at 13:47
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Django using get_user_model vs settings.AUTH_USER_MODEL
... you don't want to bother about it further, just take it.
"in both cases" means: if you need the user model for accessing its attributes, as well as if you want to define a ForeignKey/ManyToMany-relation.
From the changelog:
get_user_model() can now be called at import time, even in modules th...
For each row return the column name of the largest value
...what department they are in most often. It is trivial to tabulate employee ID against department name, but it is trickier to return the department name, rather than the number of roster counts, from the frequency table. A simple example below (column names = departments, row names = employee ids).
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Difference Between ViewData and TempData?
...a from controller to corresponding view.
view data have very short life it means it will destroy when redirection occurs.
Example(Controller):
public ViewResult try1()
{
ViewData["DateTime"] = DateTime.Now;
ViewData["Name"] = "Mehta Hitanshi";
ViewData["Twitter"] = "@hit...
Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
...scanf. Note that this does not imply that using the same format specifier means that the data written by a [f]printf() can be read by [f]scanf(). In general, using the same format specifier for scanf() that was used by printf() will not successfully read the data. For example, space padding that ...
VC菜单命令详解(文件打开、保存与关闭) - C/C++ - 清泛网 - 专注C/C++及内核技术
...单命令详解(文件打开、保存与关闭)第一部分：五个命令ID： 处理函数ID_FILE_NEW CWinApp::OnFileNewID_FILE_OPEN CWinApp::OnFileOpenID_FILE_SAVE CDocument::OnFileSav...第一部分：
五个命令ID： 处理函数
ID_FILE_NEW CWinApp::OnFileNew
ID_FILE_OPEN CWinAp...
Why use a public method in an internal class?
... internal?
My opinion is: mark such members as public.
I use "public" to mean "this member is not an implementation detail". A protected member is an implementation detail; there is something about it that is going to be needed to make a derived class work. An internal member is an implementation ...
Does Javascript pass by reference? [duplicate]
...ng, but every specialized field has specialized terminology. A "reference" means something like what "pointer" means in C or C++ (well C++ has both pointers and references). However in languages like JavaScript or Java for that matter a "value" that is a particular object can only be a reference to ...
jQuery selector regular expressions
...
Ok. I have been there but I didn't really know the name of what I was looking for. Ive had another look and using attribute filters is what I was after.
– Joel Cunningham
Oct 10 '08 at 5:49
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